Yeah, like someone else said, it may vary from person to person but I've found that I don't really smell when I sweat as long as I've showered that day.

And you can take it a little easier during the ride.

I have trouble doing that, lol, I like to go fast. I find the best compromise is to slow down for the last 5-10 minutes of the ride - once you stop riding, if your body was just hitting it hard it keeps sweating a lot, but now you don't have the cooling benefits of airflow so you get hotter for a while until your body catches up and realizes you're not working hard any more. If you half-way coast for that 5-10 minutes, it's not nearly as bad when you get off the bike.

For keeping cool I've found filling my water bottle full of ice and cold water, then drinking that really helps, but I don't know if it would actually help with smell.

And as someone else mentioned, it's usually the arm pits that are the worst for smell - when I don't have time to shower but I'm starting to smell just taking a washcloth and water and washing the 'pits really makes a difference.